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Diesel Repair

Mobile Diesel Repair Services in Greater Boston

When your diesel-powered truck, trailer, or fleet vehicle needs attention, time is money. That’s why Luema Mobile Truck Repair brings professional-grade diesel engine diagnostics, repair, and maintenance directly to your location—minimizing downtime while maximizing reliability.

Diesel engines power the backbone of the commercial transport industry. They’re tough, efficient, and built to last—but they also demand specialized care. Our certified diesel mechanics have the expertise, tools, and experience to keep your diesel fleet running strong, safe, and compliant.

Comprehensive Diesel Repair & Maintenance Services

We service a wide range of diesel-powered commercial vehicles, including semi-trucks, box trucks, flatbeds, utility vehicles, and heavy-duty equipment. Whether it’s a scheduled maintenance service or an emergency roadside repair, our mobile diesel technicians are ready to help.

Engine Diagnostics and Repair

Your diesel engine is a complex system, and even small issues can lead to serious breakdowns if left unchecked. We provide complete diesel engine diagnostics, using state-of-the-art tools to identify and resolve problems such as:

  • Loss of power or torque
  • Excessive exhaust smoke
  • Oil leaks or overheating
  • Rough idling or misfires
  • Hard starts or no-start conditions

Fuel System Service

A well-functioning fuel system is critical to your engine’s efficiency. Fuel system issues can lead to stalling, poor mileage, or system failure. We service and repair:

  • Fuel injectors
  • Fuel pumps
  • Fuel filters
  • Fuel pressure regulators
  • Fuel lines and tanks

Transmission Maintenance & Repair

If you notice shifting issues, slipping gears, or delays in acceleration, it could point to a transmission problem. We offer mobile service for:

  • Transmission fluid changes and inspections
  • Solenoid and valve replacements
  • Torque converter issues
  • Rebuilding or replacing worn transmission components

Exhaust & Emissions System Repair

Diesel exhaust systems are complex and vital to both safety and legal compliance. We provide exhaust system diagnostics and repair, including:

  • Muffler, pipe, and DPF (Diesel Particulate Filter) service
  • Catalytic converter replacement
  • EGR (Exhaust Gas Recirculation) diagnostics and cleaning
  • DEF (Diesel Exhaust Fluid) system repairs

Electrical System Diagnosis

From lights to sensors to alternators, modern diesel vehicles depend on intricate electrical systems. We provide mobile repair and replacement of:

  • Starter motors and alternators
  • Battery systems and relays
  • Wiring harnesses
  • Lighting systems (brake lights, markers, interior)
  • ECU/PCM module diagnostics

Book Your Diesel Repair Now – Luema Comes to You

Avoid the delays, towing costs, and shop downtime. Trust Luema Mobile Truck Repair for diesel diagnostics, engine repairs, transmission services, fuel system work, and more—delivered directly to your location by experienced pros.

Why Choose Luema for Diesel Repairs?

Certified Diesel Technicians

Our technicians are trained to handle the unique challenges of diesel systems and engines. With over a decade of hands-on field experience, we bring expert-level skill to every job.

100% Mobile Convenience

We come to you—at your depot, yard, job site, or even roadside. No need to tow your vehicle or schedule shop time. Luema’s mobile diesel units are fully equipped for on-site service.

Fleet & Owner-Operator Friendly

From single-truck operators to fleet managers, we tailor our services to meet your operational needs. Ask about ongoing fleet maintenance plans and bulk repair scheduling.

Transparent Pricing & Trusted Work

You’ll always receive an upfront quote, honest diagnostics, and high-quality repairs. We back our work with a satisfaction guarantee and use OEM or top-tier aftermarket parts.

FAQs – Diesel Repair

We repair all types of diesel-powered commercial vehicles including semi-trucks, heavy-duty trailers, box trucks, flatbeds, utility trucks, and delivery vans.

Yes. Most common diesel issues—such as injector problems, turbo issues, fuel line leaks, and electrical faults—can be repaired on-site. In rare cases requiring large equipment, we may schedule off-site service.

Symptoms include poor fuel economy, hard starting, stalling, or loss of power. We can diagnose and resolve fuel system issues, including injector replacement or fuel pump repair.

Yes. Preventive maintenance extends the life of your diesel engine and helps you avoid costly breakdowns. We offer custom plans for individuals and fleets.